TM nonlinear modes of a liquid-crystal slab waveguide were studied as a function of the guided light power. Starting from Maxwell’s equations and from the torque equation for the nematic director, we derived a set of nonlinear differential equations with boundary conditions that depend on the considered geometry. The case of planar initial alignment of the nematic director has been exactly solved by a numerical technique based on the continuation method. The director reorientation induced by the guided light itself gives rise to such strong nonlinear effects as self-confinement and intrinsic optical bistability.
Transverse-magnetic nonlinear modes in a nematic liquid-crystal slab waveguide / Abbate, Giancarlo; Stefano, L. De; Santamato, Enrico. - In: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. B, OPTICAL PHYSICS. - ISSN 0740-3224. - 13:7(1996), pp. 1536-1541. [10.1364/JOSAB.13.001536]
Transverse-magnetic nonlinear modes in a nematic liquid-crystal slab waveguide
ABBATE, GIANCARLO;SANTAMATO, ENRICO
1996
Abstract
TM nonlinear modes of a liquid-crystal slab waveguide were studied as a function of the guided light power. Starting from Maxwell’s equations and from the torque equation for the nematic director, we derived a set of nonlinear differential equations with boundary conditions that depend on the considered geometry. The case of planar initial alignment of the nematic director has been exactly solved by a numerical technique based on the continuation method. The director reorientation induced by the guided light itself gives rise to such strong nonlinear effects as self-confinement and intrinsic optical bistability.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.